var str = "hello regexp 11aba11,123abv123";
var pattern = /(\d{2,})\w+\1/g;
/*var result = str.search(/(\d{2,})\w+\1/g);
console.log(result);
var result = str.search(/(\d{2,})\w+\1/g);
console.log(result);
*/
var result = str.match(pattern)
console.log(result);
